Left atrial volume assessment in atrial fibrillation using multimodality imaging: a comparison of echocardiography, invasive three-dimensional CARTO and cardiac magnetic resonance imaging
| Autor: | Anoop Agrawal, Owais Malick, Atif Bashir, Mark G. Rabbat, David J. Wilber, Santanu Biswas, Mushabbar A Syed, Kevin M Thomas, Thriveni Sanagala |
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| Rok vydání: | 2015 |
| Předmět: |
Male
medicine.medical_specialty medicine.medical_treatment Action Potentials Magnetic Resonance Imaging Cine Catheter ablation Multimodal Imaging Imaging Three-Dimensional Predictive Value of Tests Cardiac magnetic resonance imaging Internal medicine Atrial Fibrillation Image Interpretation Computer-Assisted medicine Humans Radiology Nuclear Medicine and imaging Multislice Heart Atria cardiovascular diseases Cardiac imaging Aged Observer Variation medicine.diagnostic_test business.industry Reproducibility of Results Atrial fibrillation Magnetic resonance imaging Gold standard (test) Middle Aged Ablation medicine.disease Echocardiography Catheter Ablation cardiovascular system Cardiology Female Electrophysiologic Techniques Cardiac Cardiology and Cardiovascular Medicine business |
| Zdroj: | The International Journal of Cardiovascular Imaging. 31:1011-1018 |
| ISSN: | 1573-0743 1569-5794 |
| DOI: | 10.1007/s10554-015-0641-y |
| Popis: | Left atrial size in atrial fibrillation is a strong predictor of successful ablation and cardiovascular events. Cardiac magnetic resonance multislice method (CMR-MSM) is the current gold standard for left atrial volume (LAV) assessment but is time consuming. We investigated whether LAV with more rapid area-length method by echocardiography (Echo-AL) or cardiac magnetic resonance (CMR-AL) and invasive measurement by 3D-CARTO mapping during ablation correlate with the CMR-MSM. We studied 250 consecutive patients prior to atrial fibrillation ablation. CMR images were acquired on 3T scanner to measure LAV by MSM and biplane area-length method. Standard echocardiography views were used to calculate LAV by biplane area-length method. LAV during ablation was measured by 3D-CARTO mapping. LAV was compared using intra-class correlation (ICC), Pearson's correlation and Bland-Altman plots. CMR-MSM was used as the reference standard. Mean LAV using CMR-MSM was 112.7 ± 36.7 ml. CMR-AL method overestimated LAV by 13.3 ± 21.8 ml (11.2%, p < 0.005) whereas 3D-CARTO and Echo-AL underestimated LAV by 8.3 ± 22.6 and 24.0 ± 27.6 ml respectively (8.7% and 20.0% respectively, p < 0.005). There was no significant difference between paroxysmal and persistent atrial fibrillation. CMR-AL and 3D-CARTO correlated and agreed well with CMR-MSM (r = 0.87 and 0.74, ICC = 0.80 and 0.77 respectively). However, Echo-AL had poor correlation and agreement with CMR-MSM (r = 0.66 and ICC = 0.48). Bland-Altman plots confirmed these findings. CMR-AL method may be used as an alternative to CMR-MSM, as it is non-invasive, rapid, and correlates well with CMR-MSM. LAV by different modalities should not be used interchangeably. |
| Databáze: | OpenAIRE |
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